Surgical or dental instrument and cannulae for aspirating, clean

Details Surgical or dental instrument and cannulae for aspirating, clean Surgical or dental instrument and cannulae for aspirating, clean

1988-02-03

1989-10-10

Wilson, John J.

Dentistry

Apparatus

Having means to emit radiation or facilitate viewing of the...

433 80, 433 91, 604902, A61C 300, A61C 1702, A61C 1704

Patent

active

048728373

ABSTRACT:
This invention relates to a surgical or dental instrument capable of illuminating, washing with liquid, washing with sprayed liquid, drying with air, and aspirating. The instrument incorporates a hollow body comprising means for connecting it to a suction tube, means for fitting thereto a removable cannula, means for supplying fluids which will be conveyed to the end of the cannula, and a supply of electrical current for illuminating a bulb. The hollow body contains a sleeve traversed by an axial bore whose diameter is equal to the inner diameter of the cannula. The sleeve includes, a housing in which is placed a bulb which emits light in the direction of the cannula. The cannula is shaped and positioned for the light generated by the bulb to be conveyed in the sleeve then in the cannula, whose wall performs the role of light conductor. The cannula further includes conduits for conveying fluids. The cannula and the hollow body are shaped so that the cannula may pivot on itself in the hollow body.

REFERENCES:
patent: 2709852 (1955-06-01), Maurer et al.
patent: 4617013 (1986-10-01), Betz
patent: 4619612 (1986-10-01), Weber et al.
patent: 4629425 (1986-12-01), Detsch
patent: 4648838 (1987-03-01), Schlachter
patent: 4743199 (1988-05-01), Weber et al.

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